Monthly expenditure of milk of 100 families in a housing society are given in the following frequency distribution Monthly expenditure(in) 0-175 175-350 350-525 525-700 700-875 875-1050 1050-1225 Number of families 10 14 15 21 28 7 5

What are the differences between similar triangles and congruent triangles?

What are Armstrong numbers?

All real numbers are rational numbers.

A) True

B) False

The L.C.M of the smallest 2 digit composite number and the smallest composite number is:

• (a) 12
• (b) 4
• (c) 20
• (d) 44

Are all natural numbers also whole numbers?